5.1 Pad replacement

Working process:

1. Based on the part 4.2, take off the pad retainer, wear indicator,  pay attention to take off the wear indicator sensor on the pad;
2. Use the ratchet spanner to adjust the clearance hexagon , make the pad support return to its initial position, move the caliper and take off the worn pad;
   
3. Use the wire-brush to clean the stain on the positioning face 2 of the opening pads of the bracket, and pay attention not to damage the floating pin boot1;
4. Inspect the disc according to the part 4.3, replace the disc when necessary;
5. Assemble the new pad on the opening bracket, and the friction material side should face the disc;
6. Rotate and adjust the hexagon till the inner and outer pads are against the disc closely, then adjust the hexagon by 50±10 degree reverse ;
7. Assemble the sensor, press plate, wear indicator fixed frame, pin and split pin according to the state before disassembly.

Caution:

1. Grease isn’t permitted to appear on the surface of pad;
2. While assemble the wear indicator sensor, the touching point should be in the direction facing the disc. Pay attention to protect the conductor and prevent friction;
3. While rotate and adjust the hexagon, notice the rotation moment, do not overexert.